Edit file File name : block.json Content :{ "$schema": "https://schemas.wp.org/trunk/block.json", "apiVersion": 3, "name": "core/shortcode", "title": "Shortcode", "category": "widgets", "description": "Insert additional custom elements with a WordPress shortcode.", "textdomain": "default", "attributes": { "text": { "type": "string", "source": "raw" } }, "supports": { "className": false, "customClassName": false, "html": false }, "editorStyle": "wp-block-shortcode-editor" } Save